huì sè
difficult to understand
cryptic
tāo guāng yǎng huì
to conceal one's strengths and bide one's time (idiom)
to hide one's light under a bushel
huì qì
bad luck
unlucky
calamitous
wretched
fēng yǔ rú huì
lit. wind and rain darken the sky (idiom); fig. the situation looks grim
jiān shēn huì sè
abstruse and unfathomable (idiom)
fēng yǔ huì míng
conditions of extreme adversity (idiom)
zūn shí yǎng huì
to bide one's time, waiting for an opportunity to stage a comeback in public life (idiom)